Hi CD,
I have one of those. It is OK for hollowing small items, but isn't very practical for larger project for two reasons:-
1) The cutter is very small, so removing large amounts of wood takes AGES.
2) The handle isn't really long enough, so if you are working in the bottom of a deep (more than 6") vessel, it is hard to control the cutter, which results in a lot of vibration, which gets very tiring very quickly. :?
If you only intend using it on small hollow forms, it will be fine.
I use mine mainly for undercutting bowl rims (much safer than using a gouge!), and it is excellent for that. I have been tempted to try removing the handle, so that I can fit a much longer one, but the handle seems to be on pretty tight, and doesn't want to come off! ](*,)
For larger hollow work I am torn between getting the Roly Munro hollower (Trev the Turner highly recommends this) , or the Woodcut Perform System. Both get good reviews, although the Munro is leading slightly at the moment simply because it is easier to sharpen!
Regards
Gary